On Jul 3, 1:41*am, Desertphile
wrote:

Yes, and by rising sea levels.

When there is a rise in sea level the coral polyps will build the reef
up to the new high water mark.
Again
If the sea level does go up the coral islands will grow to the new
high water mark ..
And from recent surveys the islands in the Pacific have been
increasing in surface area.
One of those natural events that has been happening since time
started..